/* 清楚默认样式 */
*{
	margin:0;
	padding:0;
}
/* 清楚li默认样式 */
ul li{
	list-style:none;
}
/* 清除浮动 */
/* .clear{
	clear:both;
} */
a{
	text-decoration: none;
	color:#000000;
}
/* 顶部开始 */
.heade{
	width:100%;
	height:30px;
	background: #800000;
}
.content{
	width:1200px;
	margin: 0 auto;
}
.contentR{
	float:right;
}
.content li{
	float:left;
	color:#F5F5F5;
	font-size:14px;
	text-align:center;
	line-height:30px;
	margin-right:20px;
}
.content li:hover{
	color:#fff;
	cursor: pointer;
}
/* log开始 */
.log{
	height: 100px;
	background: #8B0000;
}
.logo{
	width: 1200px;
	height: 100px;
	margin: 0 auto;
}
.logo img{
	width: 220px;
	height: 60px;
	padding:20px 0 20px 0;
}
/* log结束 */
/* 顶部结束 */
/* 导航开始 */
.nav{
	width: 100%;
	height: 40px;
	position:relative;
}
.navC{
	width: 1000px;
	margin: 0 auto;
}
.navC li .beida{
	float:left;
	padding:10px 36px 10px 36px;
	font-size:16px;
}
.navC li .beida:hover{
	background-color:#8B0000;
	color:#fff;
	cursor:pointer;
	display: block;
}
/* 导航结束 */
/* 二级导航开始 */
.subnav{
	width: 100%;
	height: 200px;
	background:#fff;
	position:absolute;
	left:0;
	top:38px;
	z-index:1;
	display: none;
}
.navC li:hover .subnav{
	display: block;
}
.subnavC{
	width: 1200px;
	height: 200px;
	margin: 0 auto;
}
.subnavCL{
	width: 640px;
	height: 200px;
	float:left;
}
.subnavCL img{
	width: 370px;
	height: 140px;
	margin:20px 0 0 0;
	float:left;
}
.subnavCL p{
	color:#8B0000;
	margin-left:40px;
	line-height: 24px;
}
.subnavsize{
	width: 270px;
	float:left;
	margin:24px 0 0 0;
	font-size:15px;
	color:#AF0A1A;
	text-align: center;
}
.subnavCR{
	width: 550px;
	float:left;
	margin-top:18px;
}
.subnavlist,.subnavlistC,.subnavlistR{
	float:left;
	margin-left:90px;
	font-size:14px;
}
.subnavCR a{
	color:#999999;
}
.subnavCR li{
	margin-top:6px;
	text-align: center;
}
.subnavCR a:hover{
	color:#8B0000;
	cursor:pointer;
}
/* 二级导航结束 */
/* 轮播图开始 */
.lunbo{
	width: 100%;
	height: 420px;
	background:url(../images/1.jpg) no-repeat center center;
	background-size:100%;
	position:relative;
}
/* 圆点 */
.circular{
	position:absolute;
	bottom:16px;
	left:50%;
}
.cir li{
	width: 10px;
	height: 10px;
	background: #f5f5f5;
	float:left;
	margin-left:10px;
	border-radius:50%;
}
/* 轮播图结束 */
/* 新闻开始 */
.news{
	width: 1000px;
	height: 340px;
	margin: 0 auto;
	margin-top:40px;
}
.newT{
	padding:0 0 10px 0;
	border-bottom:2px solid #8B0000;
}
.newBL{
	height: 280px;
	margin-top:10px;
	float:left;
}
.newBL img{
	width: 300px;
	height: 200px;
}
.newBL p{
	font-size:14px;
}
.newBR{
	float:right;
	margin-top:10px;
}
.newSL{
	float:left;
}
.pageT a p:hover{
	color:#8B0000;
	cursor:pointer;
}
.newSR{
	float:right;
	margin-left:10px;
}
.newBR li{
	width: 320px;
	height: 60px;
	border-bottom:1px solid #F5F5F5;
	font-size:14px;
	padding:10px 0 0 20px;
	box-sizing:border-box;
}
.newBR li:hover,.mediaBT p:hover,.mediaBB p:hover,.noticeBR li:hover,.website p:hover{
	color:#8B0000;
	cursor:pointer;
}
.pageT{
	height: 200px;
}
.pageB{
	width: 300px;
	float:right;
	font-size:14px;
	margin-top:10px;
	color:#8B0000;
}
.pageB span:nth-child(1){
	float: left;
}
.pageB span:nth-child(2){
	float: right;
}
.pageB span:hover{
	text-decoration:underline;
	color:#8B0000;
	cursor:pointer;
}
b{
	color:#000;
}
/* 新闻结束 */
/* 教学科研开始 */
.science{
	width: 100%;
	height:0 auto;
}
.start{
	width: 1000px;
	height:580px;
	margin: 0 auto;
}
.startL{
	width: 550px;
	float:left;
}
.startLF,.media,.notice{
	width: 550px;
	height: 190px;
}
.startLF h4,.media h4{
	padding:0 0 8px 0;
	border-bottom:2px solid #8B0000;
	font-weight: normal;
}
.startB{
	width: 100%;
	height: 150px;
	margin-top:10px;
}
.startBL{
	float: left;
}
.startBL img{
	width: 110px;
	height: 110px;
}
.startBR{
	width: 400px;
	float:right;
	font-size:14px;
}
.sizet:hover{
	color:#8B0000;
	cursor:pointer;
}
.sizeb{
	margin-top:10px;
	font-size:12px;
}
/* 媒体北大 */
.mediaBT,.mediaBB{
	width: 100%;
	height: 40px;
	margin-top:10px;
}
.mediaBT li,.mediaBB li{
	width: 120px;
	height: 40px;
	background: #f5f5f5;
	text-align:center;
	line-height:35px;
	color:#8B0000;
	float:left;
	font-size:14px;
}
.mediaBT p,.mediaBB p{
	float:left;
	margin-left:30px;
	font-size:14px;
}
.mediaBB{
	margin-top:20px;
}
.noticeT{
	width: 100%;
	height: 35px;
	border-bottom:2px solid #8B0000;
}
.noticeC li{
	width: 100px;
	font-size:18px;
	float:left;
	padding:0 0 0 20px;
	border-left:2px solid #f5f5f5;	
}
.noticeC li:hover{
	color:#8B0000;
	cursor:pointer;
}
.noticeB{
	width: 100%;
	height: 200px;
	margin-top:10px;
}
.noticeBL{
	width: 100%;
	height: 150px;
	float:left;
}
.noticeBL li{
	width: 100%;
	height: 40px;
	font-size:16px;
	color:#8B0000;
}
.noticeBLM{
	width: 120px;
	height: 40px;
	line-height: 40px;
	float: left;
}
.noticeBLR{
	width: 405px;
	height: 40px;
	float: right;
}
.noticeBLM span:nth-child(1){
	font-size: 18px;
}
.noticeBLM span:nth-child(2){
	font-size:14px;
}
.noticeBLR p{
	color:#000;
	font-size:14px;
}
.startR{
	width: 410px;
	height: 580px;
	float:right;
}
.startlist li{
	 width: 100%;
	 height: 180px;
	 background: #F5F5F5;
	 margin-top:20px;
}
.startlist li:nth-child(1){
	margin-top:0px;
}
.schoolT{
	width: 100px;
	height: 178px;
	border:1px solid #999999;
	float:left;
}
.schoolT{
	border-right:none;
}
.schoolR{
	width: 308px;
	height: 178px;
	border-top:2px solid #8B0000;
	float:left;
}
.schoolL{
	width: 50px;
	height: 50px;
	margin:50px 0 0 24px;
}
.schoolT p{
	text-align: center;
	font-size:15px;
}
.schoolT p:hover{
	color:#8B0000;
	cursor:pointer;
}
.schoolRB{
	width: 100%;
	height: 30px;
	background: rgba(69,59,59,.6);
	margin-top:148px;
	color:#fff;
	text-align: center;
	line-height: 30px;
	font-size:14px;
	display: none;
}
.schoolR:hover .schoolRB{
	display: block;
}
/* 教学科研结束 */
/* 专业网站列表开始 */
.list{
	width: 100%;
	height: auto;
	margin-top:50px;
}
.listpoto{
	width: 1000px;
	margin: 0 auto;
}
.website{
	width: 1000px;
	height: 130px;
}
.website li{
	width: 179px;
	height: 130px;
	float:left;
	border-top:2px solid #8B0000;
	position: relative;
	overflow: hidden;
}
.website li:nth-child(1){
	width: 100px;
	height: 130px;
	background: #F5F5F5;
	border:1px solid #778899;
}
.website li:nth-child(1){
	border-right:none;
}
.website img{
	width: 179px;
	height: 130px;
}
.websitepoto{
	width: 50px !important;
	height: 50px !important;
	margin:26px 0 0 24px;
}
.website p{
	text-align: center;
	font-size:15px;
	margin-top:4px;
}
.websitebox{
	width: 100%;
	height: 30px;
	background: rgba(0,0,0,0.5);
	text-align: center;
	line-height: 30px;
	position: absolute;
	left:0;
	top:130px;
	font-size:13px;
	color:#fff;

}
.website li:hover .websitebox{
	transition: all .5s;
	top:100px;
}
.listT{
	width: 100%;
	height: 130px;
	margin-top:100px;
}
.listB{
	width: 100%;
	margin-top:50px;
	overflow:hidden;
}
.listT li,.listB li{
	width: 210px;
	height: 130px;
	float:left;
	margin-left:50px;
	position:relative;
}
.listT li:nth-child(1),.listB li:nth-child(1){
	margin-left:0px;
}
.listT img,.listB img{
	width: 210px;
	height: 130px;
}
.box,.box1,.box2,.box3,.box4,.box5,.box6,.box7{
	width: 100%;
	height: 30px;
	position:absolute;
	bottom:0;
	left:0;
	font-size:14px;
	text-align:center;
	line-height:30px;
}
.box{
	background:rgba(96,63,68,.6);
}
.box1{
	background: rgba(97,64,85,.6);
}
.box2{
	background: rgba(91,68,100,.6);
}
.box3{
	background:rgba(117,124,151,.6);
}
.box4{
	background:rgba(142,179,187,.6);
}
.box5{
	background:rgba(34,79,47,.6);
}
.box6{
	background:rgba(182,186,141,.6);
}
.box7{
	background:rgba(149,131,104,.6);
}
.box img,.box1 img,.box2 img, .box3 img,.box4 img,.box5 img,.box6 img,.box7 img{
	width: 16px;
	height: 18px;
	padding:6px 14px 0 10px;
	float:left;
}
.box a,.box1 a,.box2 a, .box3 a,.box4 a,.box5 a,.box6 a,.box7 a{
	width: 128px;
	color:#fff;
	float:left;
	display: inline-block;
	text-align: center;
}
.listT span,.listB span{
	cursor: pointer;
}
/* 专业网站列表结束 */
/* 底部开始 */
.footer{
	width: 100%;
	border-top:1px solid #AF0A1A;
	margin-top:50px;
}
.footbox{
	margin-top:20px;
	overflow:hidden;
	display: flex;
	flex-direction: row;
}
.footbox li{
	width: 334px;
	height: 174px;
	flex: 1;
	float:left;
	border-right:1px solid #AF0A1A;
	text-align: center;
}
.footbox li:nth-child(5){
	border-right:0;
}
.footerB{
	width: 100%;
	background: #000;
	margin-top:30px;
}
.footerC{
	width: 1000px;
	height: 30px;
	margin: 0 auto;
}	
.footerS li{
	float: left;
	color:#fff;
	font-size:12px;
	line-height: 30px;
}
.footerS span{
	border-right:1px solid #fff; 
	padding:0 15px 0 15px;
 }
.footerS li:nth-child(1) span{
	padding-left:0;
}
.footerS li:nth-child(6) span{
	padding-left:0;
	border-right:0;
}
.footerS li:nth-child(5):hover{
	color:#8B0000;
}
/* 底部结束 */
